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Finding the Fourth Proportional to 7,237.96, 9,989.95 and 4,406.25

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Solution

The fourth proportional to 7,237.96, 9,989.95 and 4,406.25 is: 6,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.96 : 9,989.95 = 4,406.25 : x
  2. Step 2: Convert to fraction form
    7,237.96/9,989.95 = 4,406.25/x
  3. Step 3: Cross multiply
    7,237.96x = 9,989.95 × 4,406.25
  4. Step 4: Simplify right side
    7,237.96x = 44,018,217.19
  5. Step 5: Solve for x
    x = 44,018,217.19/7,237.96
  6. Step 6: Final answer
    x = 6,081.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.